Hi all, have attached some images to clarify hopefully. I am printing with 123-3D brand PLA.

\> Current bed mesh, examples of the prints lifting up on the left side (front) of the printer. I can't orient it any other way on this table, which is the only spot in my house that it can be on/in.

\> Current bubbling/distortion issue, the skirt/brim/first line seems okay however?

I have owned this Neptune 4 Plus for about a year now, and it is very on/off with printing. Right now I am having issues with the first layer adhering to the bed and while trying to fix levelling I'm running into general print problems, it's giving me such a headache and I spent the whole day yesterday trying to adjust and fix settings/distance/etc to no avail.

**What I've tried so far for the adhesion issues:**

\- Cleaning the print bed with hot water and regular Fairy dish soap, drying with a clean microfibre towel.

\- Using alcohol to clean the bed (80% podior) and letting it dry for about 10 minutes before printing. I don't usually do this but tried as it was suggested in a video about setting up your N4 Plus.

\- Closing the distance a bit for more squish, however it seems it just ends up scraping across the print.

\- Adding skirts/brims

\- Slowing down the first layer speed, turning the fan lower on the first layers

\- Decreasing bed temp as this PLA filament recommends 50 degrees celcius (was at 60) but it printed fine before with this exact filament..

**What I've tried for the print issues:**

\- Leveling meticilously by hand/manual, then using screws\_tilt\_calculate + adjust until it's all within 0.02 or less.

\- Adjusting/tightening the screws under the bed plate to try and reduce the dip in the front.

\- Putting a piece of aluminium foil to reduce the dip in the front of the printbed, where the issues are most prevalant. Running the above again and calibrating the bed, auto leveling and adjusting the z-offset as I go.

\- Adjust the z-offset during a print to see if it works better or worse. However the first layer seems to always bubble/wave and have no consistency lately..

It ran way better before when technically it should be better after all the effort of levelling and adjusting? I'm not knowledgable at \*all\* about any of this though. :(

I have discussed this with someone I know who knows more about 3D printers and also owns a Neptune 4 Plus but it also didn't really help..

Maybe I've just been staring at it all too much - it was printing okay before, except for the adhesion issues which sometimes messed up or distorted the rest of the print.

I've also used glue stick before, but I would like to fix the issue with adhesion rather than just cover everything in glue stick ideally.

Thanks for the help in advance!

N4 Plus - Print issues on first layer (adhesion, distance?)